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You can search for vulnerabilities managed by JVN (Japan Vulnerability Note) and NVD (National Vulnerability Database).
Search keywords must be entered in English otherwise will not be searched in both JVN and NVD.

To search by CWE, please refer to the CWE Overview and check the CWE number.

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JVN Vulnerability Information

Update Date":May 27, 2026, 4 p.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Impact
Show		 Exploit
PoC
Search
421 4.3 警告
Network 		Mattermost, Inc. Mattermost Server Mattermost, Inc.のMattermost Serverにおける認証の欠如に関する脆弱性 CWE-862
認証の欠如 		CVE-2026-3637 2026-05-21 10:52 2026-05-18 Show GitHub Exploit DB Packet Storm
422 9.8 緊急
Network 		H2O.ai H2O H2O.aiのH2Oにおけるコードインジェクションの脆弱性 CWE-94
コード・インジェクション 		CVE-2026-3960 2026-05-21 10:52 2026-04-23 Show GitHub Exploit DB Packet Storm
423 8.4 重要
Local 		マイクロソフト Microsoft 365 Apps
Microsoft Office
Office Long Term Servicing Channel (LTSC) 		Microsoft Office のリモート コードが実行される脆弱性 CWE-416
解放済みメモリの使用 		CVE-2026-40358 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
424 7.8 重要
Local 		マイクロソフト Microsoft Office Online Server
Microsoft Excel
Microsoft Office
Office Long Term Servicing Channel (LTSC)
Microsoft 365 Apps 		Microsoft Excel のリモートでコードが実行される脆弱性 CWE-416
解放済みメモリの使用 		CVE-2026-40359 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
425 7.8 重要
Local 		マイクロソフト Microsoft Office Online Server
Microsoft Excel
Microsoft Office
Office Long Term Servicing Channel (LTSC)
Microsoft 365 Apps 		Microsoft Excel の情報漏えいの脆弱性 CWE-125
境界外読み取り 		CVE-2026-40360 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
426 8.4 重要
Local 		マイクロソフト Microsoft 365 Apps
Microsoft Office
Microsoft Word
Office Long Term Servicing Channel (LTSC) 		Microsoft Word のリモートでコードが実行される脆弱性 CWE-416
解放済みメモリの使用 		CVE-2026-40361 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
427 7.8 重要
Local 		マイクロソフト Microsoft Office Online Server
Microsoft Excel
Microsoft Office
Office Long Term Servicing Channel (LTSC)
Microsoft 365 Apps 		Microsoft Excel のリモートでコードが実行される脆弱性 CWE-122
ヒープオーバーフロー 		CVE-2026-40362 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
428 8.4 重要
Local 		マイクロソフト Microsoft 365 Apps
Microsoft Office
Office Long Term Servicing Channel (LTSC) 		Microsoft Office のリモート コードが実行される脆弱性 CWE-122
ヒープオーバーフロー 		CVE-2026-40363 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
429 8.4 重要
Local 		マイクロソフト Microsoft 365 Apps
Microsoft Office
Microsoft Word
Office Long Term Servicing Channel (LTSC) 		Microsoft Word のリモートでコードが実行される脆弱性 CWE-122
CWE-843
CWE-908
CVE-2026-40364 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
430 8.4 重要
Local 		マイクロソフト Microsoft 365 Apps
Microsoft Office
Microsoft Word
Office Long Term Servicing Channel (LTSC) 		Microsoft Word のリモートでコードが実行される脆弱性 CWE-416
解放済みメモリの使用 		CVE-2026-40366 2026-05-21 10:52 2026-05-12 Show GitHub Exploit DB Packet Storm
NVD Vulnerability Information

Update Date:May 27, 2026, 4:52 a.m.

No CVSS Level
Attach Vector		 Vendor Name Project Name Title CWE CVE Update Date Publication Date Show Affected Exploit
PoC
Search
1221 5.5 MEDIUM
Local 		microsoft 365_apps
office
office_long_term_servicing_channel
word 		Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally. CWE-552
 Files or Directories Accessible to External Parties 		CVE-2026-35440 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1222 8.4 HIGH
Local 		microsoft 365_apps
office
office_long_term_servicing_channel 		Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. CWE-416
 Use After Free 		CVE-2026-40358 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1223 7.8 HIGH
Local 		microsoft 365_apps
excel
office
office_long_term_servicing_channel
office_online_server 		Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. CWE-416
 Use After Free 		CVE-2026-40359 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1224 7.8 HIGH
Local 		microsoft 365_apps
excel
office
office_long_term_servicing_channel
office_online_server 		Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. CWE-125
Out-of-bounds Read 		CVE-2026-40360 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1225 8.4 HIGH
Local 		microsoft 365_apps
office
office_long_term_servicing_channel
word 		Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. CWE-416
 Use After Free 		CVE-2026-40361 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1226 7.8 HIGH
Local 		microsoft 365_apps
excel
office
office_long_term_servicing_channel
office_online_server 		Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. CWE-122
Heap-based Buffer Overflow 		CVE-2026-40362 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1227 8.4 HIGH
Local 		microsoft 365_apps
office
office_long_term_servicing_channel 		Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. CWE-122
Heap-based Buffer Overflow 		CVE-2026-40363 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1228 8.4 HIGH
Local 		microsoft 365_apps
office
office_long_term_servicing_channel
word 		Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally. CWE-122
CWE-843
CWE-908
Heap-based Buffer Overflow
Type Confusion
 Use of Uninitialized Resource 		CVE-2026-40364 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1229 8.4 HIGH
Local 		microsoft 365_apps
office
office_long_term_servicing_channel
word 		Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. CWE-416
 Use After Free 		CVE-2026-40366 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm
1230 8.4 HIGH
Local 		microsoft 365_apps
office
office_long_term_servicing_channel
sharepoint_server
word 		Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally. CWE-822
 Untrusted Pointer Dereference 		CVE-2026-40367 2026-05-20 03:05 2026-05-13 Show GitHub Exploit DB Packet Storm